Improved composition for desulphurizing coal



UNITED STATES PATENT ()FFICE. I

JOS. H. OONNELLY, OF WHEELING, WEST VIRGINIA.

'|MPROVED COMPOSITION FOR DESULPHURIZING COAL.

Specification forming part of Letters Patent No. 43.760, dated August 9, 1864.

To all whom it may concern:

Be it known that I, J os. H. GONNELLY, of Wheeling, in the county of Ohio and State of West Virginia, have invented a new and Improved Oomposition for Desulphurizing Goal, 860.; and I do hereby declare that the following is a full, clear, and exact description of the same. W

This invention relates to an improvement on a process for using petroleum as'fuel, which is described in Letters Patent granted to J 0s. H. Connolly and JamesQV. Phillips, January 21, 1862, and numbered34,l98, and which consists essentially in forcing, by means of a jet of steam, petroleum or its products over the incandescent coal, wood, or other fuel generally used in steam-boiler and other furnaces, and by these means to consume all the smoke and gases, and to produce a large heat with comparatively little expenditure of fuel.

The principal advantage of this process is based on the fact that by its application the use of waste coal and of all inferior kinds of coal is rendered practicable in furnaces of any description, but particularly in boiler-furnaces, and the sole difliculty which is in the way of a perfect success consists in the fact that such coals, particularly bituminous coals, contain a large quantity of sulphur, which, when consumed under the boiler, acts very destructive on the iron.

The object of this present invention is to obviate this difficulty by mixing with the petroleum a certain desulphurizing composition, which, when forced by the jet of steam into the furnace, combines with the sulphur and destroys its quality to combine with the iron. The composition which I have used with perfect success is made of salt and slaked lime, which are mixed together and thinned with water in about the following proportion: common salt, one-half gallon; water, four gallons. To this solution I add sufficient slaked lime to produce the consistency of thick milk, and this composition I mix with the petroleum to be blown into the furnace. of sodium, when coming in contact with the sulphuret of iron, changes the same to chloride of iron and sulphite or sulphuret of sodium, and the lime assists to neutralize the action of the sulphurous acid on the iron by forming sulphate of lime, the sulphurous acid being transformed into sulphuric acid by taking up an equivalent of oxygen from the water or steam which is decomposed, and the hydrogen of which assists in increasing the heat of the fire.

I do not wish to confine myself to any particular .composition, however, since other desulphurizing agents may be blown into the furnace with the oil and steam, and the same or a similar result may be produced as above described; but I reserve the right to use the agents above described in any desirable proportion, mixed with each other or with other desulphurizing agents, as experience may dictate.

I claim as new and desire to secure by Letters Patent The use of desulphurizing agents-such as common saltand lime--in combination with petroleum or its products, forced in the form of spray in a steam-boiler or other furnace, substantially in the manner and for thepurpose herein specified.

WM. F. MONAMARA, M. M. LIVINGSTON.

The salt or chloride 

